My bot is working and able to reply to messages, but now I'm trying to add functionality for responding to a postback from the "Get Sarted" button.
I can't get the "Get Started" button to show up, though.
This previous answer suggests deleting the conversation on desktop and opening a new one, but this doesn't work: it just creates an empty conversation, without the welcome message or "Get Started" button. The documentation linked in that answer is also no longer available.
So how do I get this view to show up, so I can create and test my response to a user clicking the "Get Started" button?